Business of Fashion's Imran Ahmed reports Massenet will replace current chair Harold Tillman — though she won't take up her new post until some time next year. Falling just short of a confirmation, a BFC spokesperson said "any new chairman is subject to BFC executive board approval. The BFC executive board is not due to meet until [this] evening and any announcement cannot be expected until then."
Update: At this afternoon's meeting, the BFC's executive board approved Massenet's appointment as chairman. She will take over in early 2013, with Harold Tillman remaining "very much an active chair until end of 2012." (Massenet will also continue to hold her post as executive chairman of Net-a-Porter.)